Novel triple friction pendulum-tuned liquid damper for the wind-induced vibration control of airport control towers
Novel triple friction pendulum-tuned liquid damper for the wind-induced vibration control of airport control towers
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DOI：
10.1016/j.tws.2022.110337
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发表时间：
2022-11-20
影响因子：
6.4
通讯作者：
Chen，Qingjun
中科院分区：
文献类型：
--
作者：
Hu，Xiuyan;Zhao，Zhipeng;Chen，Qingjun
随着交通需求的迅速增长，机场塔台得到了广泛的建设，其抗风性能和高效升级技术日益受到关注。为了给机场塔台风振控制提供一种有效的液体阻尼器，提出了一种新型的三重摩擦摆调谐液体阻尼器（TFPTLD），并建立了以控制需求为导向的TFPTLD设计框架。介绍了TFPTLD的结构和理论分析模型，并在此基础上建立了TFPTLD的塔式结构。进行随机响应分析，得到随机风和白色噪声作用下的响应。相应地，进行了广泛的参数研究，以探索最佳参数，并澄清振动控制需求为导向的设计程序和易于使用的拟合设计公式的TFPTLD。此外，鲁棒性调查进行量化的优点和灵敏度的TFPTLD的刚度和阻尼组件。最后，TFPTLD被应用到一个机场塔的实验风荷载来说明装置的有效性和建议的设计方法。结果表明，所提出的TFPTLD方案能够有效地提高机场塔台在风荷载作用下的性能，显著降低结构的加速度和位移响应。根据提出的需求导向设计方法，TFPTLD具有更高的效率，更大的频率带宽，和更强大的风振控制比传统的TLD具有相同的液体质量。得益于三重摩擦摆，所需安装空间小，且液体质量的调谐效果与液体质量的变化无关，可综合利用于振动控制，维持储液罐的日常功能。
The airport control tower has been widely constructed for rapidly expanding transportation demand, whose anti-wind performance and high-efficiency upgrading technology are attracting increasing attention. To provide an efficient liquid-incorporated solution for wind-induced vibration control of airport control towers, this study proposes a novel triple friction pendulum tuned liquid damper (TFPTLD) and establishes a control demand-oriented design framework to facilitate the design of TFPTLDs. The configuration and theoretical analysis model of the TFPTLD are introduced, based on which the TFPTLD-equipped tower-like structure is established. Stochastic response analysis is performed to obtain the responses under stochastic wind and white noise. Correspondingly, extensive parametric research is conducted to explore the optimal parameters and clarify the vibration control demand-oriented design procedure and easy-to-use fitted design formula for the TFPTLD. Furthermore, a robustness investigation is undertaken to quantify the advantages and sensitivity of the TFPTLD to the stiffness and damping components. Finally, the TFPTLD is applied to an airport tower subject to experimental wind loads to illustrate the effectiveness of the devices and proposed design method. The results show that the proposed TFPTLD yields a compact solution to the high-level performance upgrading of the airport control tower subjected to wind excitations, which significantly reduces the structural acceleration and displacement responses. Following the proposed demand-oriented design method, the TFPTLD exhibits higher effectiveness, larger frequency bandwidth, and more robust wind-induced vibration control than conventional TLDs with the same liquid mass. Benefitting from the triple friction pendulum, a small installation space is required, and the tuning effect of the liquid mass is independent of the change in liquid mass, which can be comprehensively utilized for vibration control to maintain the daily function of liquid tanks.